Friday, April 25, 2014

Composite key reference to a foreign key setting problem in sql 2005 Management Studio Express

ssa2010,


In creation of a foreign key constraint, you must refer the foreign key column to the primary key column. Here sicne the key is made of two columns, you have to refer them as a whole and not partially.


If the business doesnt have way for using the two-column key, as a work around can you think about having a check constraint on studid column of Table2 that checks for the existence of the row in Table 1?




Thanks,

Jay

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